CN100479956C - Metal cutting tool and cutting plate provided in shape of donut - Google Patents

Metal cutting tool and cutting plate provided in shape of donut Download PDF

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Publication number
CN100479956C
CN100479956C CNB028147596A CN02814759A CN100479956C CN 100479956 C CN100479956 C CN 100479956C CN B028147596 A CNB028147596 A CN B028147596A CN 02814759 A CN02814759 A CN 02814759A CN 100479956 C CN100479956 C CN 100479956C
Authority
CN
China
Prior art keywords
briquetting
clamping plate
clamping
described cutter
knife rest
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB028147596A
Other languages
Chinese (zh)
Other versions
CN1535193A (en
Inventor
O·埃德
W·兹茨拉夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ceramtec GmbH
Original Assignee
Ceramtec GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ceramtec GmbH filed Critical Ceramtec GmbH
Publication of CN1535193A publication Critical patent/CN1535193A/en
Application granted granted Critical
Publication of CN100479956C publication Critical patent/CN100479956C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
    • B23B27/1625—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with plate-like cutting inserts of special shape clamped by a clamping member acting almost perpendicularly on the chip-forming plane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
    • B23B27/1625—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with plate-like cutting inserts of special shape clamped by a clamping member acting almost perpendicularly on the chip-forming plane
    • B23B27/1629—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with plate-like cutting inserts of special shape clamped by a clamping member acting almost perpendicularly on the chip-forming plane in which the clamping member breaks the chips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
    • B23B27/1644—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with plate-like cutting inserts of special shape clamped by a clamping member acting almost perpendicularly on the chip-forming plane and at the same time upon the wall of a hole in the cutting insert
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49947—Assembling or joining by applying separate fastener
    • Y10T29/49948—Multipart cooperating fastener [e.g., bolt and nut]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
    • Y10T407/2272—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder
    • Y10T407/2282—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder including tool holding clamp and clamp actuator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
    • Y10T407/2272—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder
    • Y10T407/2282—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder including tool holding clamp and clamp actuator
    • Y10T407/2286—Resiliently biased clamp jaw
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/23—Cutters, for shaping including tool having plural alternatively usable cutting edges

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Jigs For Machine Tools (AREA)
  • Food-Manufacturing Devices (AREA)
  • Table Equipment (AREA)
  • Scissors And Nippers (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Drilling Tools (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Dowels (AREA)
  • Knives (AREA)

Abstract

The invention relates to a metal cutting tool essentially comprised of a supporting tool (13), which has a recess for accommodating a cutting plate (10). The cutting plate (10) is provided with a clamping trough (11), which is held in the supporting tool (13) by a clamping claw (16). The clamping claw (16) is fixed against the supporting tool (13) by a clamping screw (17). A pressure piece (14) is placed on the clamping claw (16) and its underside facing the cutting plate (10) is provided with a cam, which is in contact with the clamping trough (11), and the clamping claw (16) pulls the pressure piece (14) toward the clamping screw (17). According to the invention, the clamping trough (11) is provided with a circular shape and has a spherical or circular elevation (12) in the center. The cam on the pressure piece (14) consists of a circular ring (21), which is adapted thereto and rightly engages in the clamping trough (11) while surrounding the elevation (12).

Description

Metal cutting tool and baking mould shape blade
Technical field
The present invention relates to a kind of metal cutting tool and corresponding blade.
Background technology
The prior art that is used for the particularly pottery system indexable insert tip, throw away tip of blade is the blade that has flat surface or various different clamping slots, for the machining metal material is clamped on the knife rest.The shortcoming of this smooth blade face technology is, lacks to be used for the clamping force that is connected with the knife rest form fit.In the blade of band clamping slot, though there is the connection of form fit, blade bears the very strong power of anchor clamps owing to be clamped in the clamping slot on quite little face, thereby can cause producing in the blade stress or even fracture.In addition, in present grip device, all possible active factor is not combined in a kind of device.
EP 0 753 366 B1 disclose a kind of metal cutting tool, mainly are made up of knife rest, have the opening of accepting blade, and blade has clamping slot, are fixed on the knife rest by clamping plate, and clamping plate are fixed on the knife rest by holding screw.Briquetting is set on the clamping plate, and it has boss on the bottom surface of blade, and boss clamps with clamping slot and contacts.In addition, clamping plate are strained briquetting on the holding screw direction.
Summary of the invention
The objective of the invention is to, utilize simple parts that a plurality of active factors are combined on a kind of device as far as possible, and obtain best clamping effect by cooperatively interacting of they.In this regard, the processing tolerance of different parts is compensated, and the connection that utilizes controllable clamping force restriction to produce additional form fit provides the modular construction of resisting the cutting force effect, to avoid clamping force loss between the operating period.
Technical solution according to this purpose of the present invention is a kind of metal cutting tool, mainly form by knife rest, this knife rest has the opening of accepting blade, blade has a clamping slot, be fixed on the knife rest by clamping plate, clamping plate are fixed on the knife rest by a holding screw, a briquetting is set on clamping plate, briquetting has a boss on the bottom surface of blade, it contacts with clamping slot, and clamping plate pull to the direction of holding screw with briquetting, it is characterized in that, clamping slot is rounded, and the middle part has sphere or circular protrusions portion; Boss on the briquetting is made up of circular ring, and it is around lug boss and clamping slot clamping engagement.
According to the present invention, clamping slot is rounded, and has a sphere or circular protrusions portion at the middle part.Boss on the briquetting is made up of a ring that is mated, and ring is guaranteed the best assembling of blade on knife rest thus around lug boss and clamping slot clamping engagement.
In preferred design, clamping plate have a hemisphere jut portion on it is in bottom surface on the briquetting, cooperate with a bulb-shaped recess portion on the briquetting.
In this case, preferably the radius of hemisphere jut portion is greater than the radius of spherical depressed part in the briquetting on the clamping plate, and power can be transmitted by external margin thus.
Briquetting preferably is with gap by a screw to be fixed with clamping plate.
For preventing that clamping plate from being cut, briquetting preferably has a front side projection.
Preferred briquetting is by hard metal, and high-abrasive materials such as HSS or pottery are made.
In preferred design, an opened portion with the ring on the briquetting concentric or to center ring winding put and a contact-making surface with opened portion concentric or centering around setting and to the angled rising in the center of ring.
What have advantage is that clamping plate guide on knife rest by an inclined-plane that has clamping force restriction portion.
In selectable embodiment, clamping plate guide on knife rest by two inclined-planes, and wherein, two inclined-planes are parallel, and separate each other by a groove.
Preferably, two inclined-planes are with the angular distribution with respect to 10 °-45 ° of the longitudinal axis of clamping plate.
What have advantage is, two inclined-planes have periphery, and knife rest has the cylinder outer surface that is mated.
Have clamping slot according to blade of the present invention, wherein, clamping slot is rounded, and has a sphere or circular protrusions portion at the middle part, in the described cutter of can packing into.
Indexable insert tip, throw away tip preferably.
Description of drawings
Introduce other features of the present invention by accompanying drawing below.Wherein:
Fig. 1 illustrates the view according to blade of the present invention;
Fig. 2 illustrates the view of the blade cutting tool of packing into;
Fig. 3 illustrates the exploded view according to Fig. 2 cutter;
Fig. 4 illustrates the profile according to Fig. 2 cutter;
Fig. 5 illustrates the enlarged drawing that clamping plate-briquetting-blade cooperatively interacts;
Fig. 6 illustrates the profile of clamping slot;
Fig. 7 illustrates the outside drawing above the briquetting;
Fig. 8 illustrates the outside drawing of briquetting bottom surface;
Fig. 9 illustrates the outside drawing of clamping plate;
Figure 10 illustrates clamping plate-briquetting-blade amplification profile.
The specific embodiment
Fig. 1 illustrates as the cutter head of indexable insert tip, throw away tip or blade 10, is used for the machining of metal works.The center of blade 10 has a circular clamping slot 11, wherein, a sphere or circular lug boss 12 is set in the middle.This clamping slot 11 and lug boss 12 are used for and will be fixed on suitable knife rest at the blade that cooperates carrier to be also referred to as tool rest.
Fig. 2 illustrates the stereogram of described blade 10 under clamped condition on the knife rest 13.Be noted that briquetting 14 (also referring to Fig. 3) this moment especially, it the bottom surface have with blade on the corresponding moulding of aforementioned clamped groove.Be delivered on the blade 10 by clamping plate 16 by the clamping force of tightening holding screw 17 generations.As special feature, clamping plate have hemisphere jut portion 18 on the bottom surface that is on the blade, and it stretches in the bulb-shaped recess portion 19 of briquetting 14, and utilize screw 15 to fix with certain interval.
Fig. 4 illustrates the cross section of the tool rest that illustrates that clamping element cooperatively interacts.When tightening holding screw 17, clamping plate 16 move downward, and utilize inclined-plane 20 similarly sliding backward simultaneously on the inclined-plane on the knife rest.Because clamping plate are by hemisphere jut portion 18, on the side that is in the opposite, inclined-plane by the clamping force that produces and briquetting 14 form fit be connected by bulb-shaped recess portion 19, and the groove interlocking of form fit ground and blade again of the lug boss 21 of briquetting, so clamping plate being displaced sideways by each clamping element in the tool rest angle is delivered on the blade.To this also referring to Figure 10.When reaching clamping force restriction portion 22, the lever motion of clamping plate strengthens.Briquetting 14 blade apply bigger pressure, at this moment also utilize its contact-making surface 23 to press to the surface of blade.This prominent features that cooperatively interacts is that under the combination of all parts, by such moulding and inclined-plane, blade outwards moves from its tool rest never again.
Fig. 5 illustrates the enlarged drawing that clamping plate-briquetting-blade cooperatively interacts once more.
Fig. 6 illustrates the profile of blade circular trough 11.Can see circle or hemisphere jut portion 12 in the middle.Particularly feature in this case is, lug boss 12 has the moulding of spheroid, be in trench bottom top and blade face below.The cross section of channel profiles is circular, and the vertical axis around spheroid distributes to a certain extent, the spitting image of the baking mould of U.S.'s fried onion ring.
Fig. 7 illustrates the upside of briquetting 14, is that it has described hemispherical impression 19 or spherical sinking or depression as special feature.
Fig. 8 illustrates the bottom surface of briquetting 14, is that it has a lug boss 21 as special feature, for blade on the moulding of the corresponding baking mould of clamping slot.Feature in addition is to the contact-making surface 23 of the angled rising in center of baking mould, also has opened portion 25, and it prevents the contact of groove edge surface and the damage of blade and cooperates not enough.For this reason also referring to Figure 10.
Another characteristics of briquetting be it by hard metal, high-abrasive materials such as HSS or pottery constitute and the projection 24 of outline, are used to prevent that clamping plate are subjected to cutting (referring to Fig. 7) when machining.Spheroid/hemispherical impression cooperates tolerance compensating and the position compensation that also is used between clamping element and the blade.
Fig. 9 illustrates the bottom surface of the clamping plate that have described hemisphere jut portion 18.In addition, the special feature of this spheroid is, the diameter of the slightly larger in diameter of spheroid hemispherical impression in briquetting 14 so that can pass through spheroid/hemispherical impression outward flange 26 (referring to Figure 10), rather than passes through bottom the hemispherical impression and the point-like at spheroid top load transmission power.Another feature is the inclined-plane 20 (referring to Fig. 4 and Fig. 9) on the clamping plate, and it guides by the inclined-plane on the knife rest.The effect on these inclined-planes is to realize that when tightening holding screw clamping element is displaced sideways, and blade is drawn in the angle of tool rest.These clamping plate are used for the littler knife rest of size.
Figure 11 illustrates the bottom surface that has described hemisphere jut portion 18 clamping plate, 16 another programs.These clamping plate 16 are used for its size can be installed bigger parts by its structure knife rest.The specific characteristic of these clamping plate is to have the inclined-plane 26 that is different from Fig. 9 shape in Background Region.As seen in fig. 12, it separates with 10 °-45 by groove 27 and distributes.The creative feature on these two inclined-planes 28 is cylindrical surperficial 28.Their effect is, when tightening holding screw, except realizing being displaced sideways of clamping plate, 13 carries out automatic centering on respect to knife rest in the opening 29 that for this reason forms.To this referring to Figure 13.
The specific characteristic of Figure 13 intermediate slide 13 upper sheds 29 also has the cylinder outer surface on two parallel inclined-planes 30, and its radius is slightly larger than the radius of the periphery 28 of clamping plate.Periphery 28 that so therefore can make approximately linear contact between the inclined-plane and can realize contacting and 30 automatic centering ground direct motion are slided.Figure 14 illustrates clamping plate and this cooperatively interact of knife rest on cross section.

Claims (12)

1. metal cutting tool, mainly form by knife rest (13), knife rest has the opening of accepting blade (10), blade (10) has a clamping slot (11), be fixed on the knife rest (13) by clamping plate (16), clamping plate (16) are fixed on the knife rest (13) by a holding screw (17), a briquetting (14) is set on clamping plate (16), briquetting has a boss on the bottom surface of blade (10), it contacts with clamping slot (11), and clamping plate (16) pull to the direction of holding screw (17) with briquetting (14), it is characterized in that, clamping slot (11) is rounded, and the middle part has sphere or circular protrusions portion (12); Boss on the briquetting (14) is made up of circular ring (21), and it is around lug boss (12) and clamping slot (11) clamping engagement.
2. by the described cutter of claim 1, it is characterized in that clamping plate (16) have hemisphere jut portion (18) on it is in bottom surface on the briquetting (14), it is rabbeted with the bulb-shaped recess portion (19) on the briquetting (14).
3. by the described cutter of claim 2, it is characterized in that clamping plate (16) are gone up the radius of hemisphere jut portion (18) and gone up the radius of bulb-shaped recess portion (19) greater than briquetting (14).
4. by one of claim 1-3 described cutter, it is characterized in that briquetting (14) is fixing with clamping plate (16) with gap by a screw (15).
5. by one of claim 1-3 described cutter, it is characterized in that briquetting (14) has a front side projection (24), be used to prevent that clamping plate (16) from being cut.
6. by one of claim 1-3 described cutter, it is characterized in that briquetting (14) is by hard metal, HSS or ceramic wear-resisting material are made.
7. by the described cutter of one of claim 1-3, it is characterized in that, an opened portion (25) with the ring (21) on the briquetting (14) concentric or to center ring winding put.
8. by the described cutter of claim 7, it is characterized in that, a contact-making surface (23) with opened portion (25) concentric or centering around setting and to the angled rising in the center of ring (21).
9. by one of claim 1-3 described cutter, it is characterized in that clamping plate (16) are gone up guiding by an inclined-plane (20) that has clamping force restriction portion (22) at knife rest (13).
10. by one of claim 1-3 described cutter, it is characterized in that clamping plate (16) are by the guiding of two inclined-planes (28) on the knife rest (13), wherein, two inclined-planes (28) are parallel, and separate each other by groove (27).
11., it is characterized in that two inclined-planes distribute with the 10 °-45 of longitudinal axis with respect to clamping plate by the described cutter of claim 10.
12. by the described cutter of claim 10, it is characterized in that two inclined-planes (28) have cylindrical surface, knife rest (13) has the cylinder outer surface (30) that cooperates therewith.
CNB028147596A 2001-07-26 2002-07-19 Metal cutting tool and cutting plate provided in shape of donut Expired - Fee Related CN100479956C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10136635 2001-07-26
DE10136635.3 2001-07-26
DE10208266A DE10208266A1 (en) 2001-07-26 2002-02-26 Stock-removing cutting tool has circular clamping trough with centre protrusion on cutting plate associated with matching circular ring on cam of pressure member which engages round protrusion
DE10208266.9 2002-02-26

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN2008101697794A Division CN101422821B (en) 2001-07-26 2002-07-19 Metal cutting tool and cutting plate provided in the shape of a donut

Publications (2)

Publication Number Publication Date
CN1535193A CN1535193A (en) 2004-10-06
CN100479956C true CN100479956C (en) 2009-04-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNB028147596A Expired - Fee Related CN100479956C (en) 2001-07-26 2002-07-19 Metal cutting tool and cutting plate provided in shape of donut

Country Status (17)

Country Link
US (4) US20040256608A1 (en)
EP (2) EP1414607B1 (en)
JP (1) JP4308651B2 (en)
KR (1) KR100932814B1 (en)
CN (1) CN100479956C (en)
AT (2) ATE424953T1 (en)
BR (2) BR0216093B1 (en)
CA (1) CA2454964C (en)
DE (3) DE10208266A1 (en)
DK (1) DK1829635T3 (en)
ES (1) ES2324558T3 (en)
IL (3) IL160008A0 (en)
MX (1) MXPA04000690A (en)
PL (1) PL207195B1 (en)
PT (1) PT1829635E (en)
RO (1) RO123526B1 (en)
WO (1) WO2003013770A1 (en)

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